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Change in relative abundance of the second generation (third flight peak) of peacock butterflies in Flanders (northern Belgium) since 1950.
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Relation between the abundance of peacock generations in Belgium 2009–2020
Scoring of wing wear of peacock butterflies in belgium 2009-2020. Link to original pictures and classification
Aggregated data of abundance indices
Is There a Bias for the Nice Amongst the Pictures Submitted to the Online Portal?
Is There a Bias for the Nice Amongst the Pictures Submitted to the Online Portal? (Part 2)
Raw data of peacock butterflies
Twee jaar dagvlinders tellen in het Burreken